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In only a small number of cases the disease has an even shorter period of incubation than this, as when tonsillotomy or a similar operation is undertaken during the prevalence of an epidemic.

She was given the A.C.E. mixture by Mr. McCardie, one of the anæsthetists to the institution, and tonsillotomy was performed.

Such operations as tracheotomy, tonsillotomy, bronchotomy, staphylotomy, etc., were performed by him, and he even advocated and described puncture of the abdominal cavity, giving careful directions as to the location in which such punctures should be made.